Enjoy learning Statistics Online! Please be sure to share and subscribe to our YouTube channel.


Course Documents

Chapter 1 - Intro

Chapter 2 - Methods for Describing Sets of Data

Chapter 3 - Probability

Chapter 4 - Discrete Random Variables

Chapter 5 - Normal Random Variables

Chapter 6 - Sampling Distributions

Chapter 7 - Confidence Intervals

Chapter 8 - Tests of Hypothesis: One Sample

Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples

Sample Exam I: Chapters 1 & 2

Sample Exam II: Chapters 3 & 4

Sample Exam III: Chapters 5 & 6

Sample Exam IV: Chapters 7 & 8

Ask the Professor Forum

hello professor, for homework 7.4 the standard deviation takes a really long time to find. I just wanted to ask whether the standard deviation will be given on the test, or will we have to find it ourselves?
-Thank you

Posted to STATS 2 on Friday, October 3, 2014   Replies: 1

Professor Mcguckian
11:20 AM EST

Hi Cristina,

In section 9.7, you can just grab the standard deviation from the answers before doing those problems because on the exam, the standard deviation will be given.

Professor McGuckian

Post a reply / comment below or click here to submit a new question to the forum.